Peter Elsea, MD
Internal Medicine Physician · Northampton, MA
Peter Elsea, MD is an internal medicine physician with a practice address in Northampton, Massachusetts, and NPI 1699731182, issued on Apr 24, 2006. Check the license (Massachusetts 159438, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Peter Elsea
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 159438 MA
Self-reported in NPPES; status is on the state search - Practice location
- 22 Atwood Dr, Northampton, MA 01060
- Phone
- (413) 584-2178
- Enumerated
- Apr 24, 2006
- Entity
- Type 1 · individual
Also registered at 22 Atwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Buckley, NPPsychiatric/Mental Health Nurse Practitioner1669941738
- Jessica Dawicki, RDRegistered Dietitian1265045421
- Eric Granowitz, MDInfectious Disease Physician1801855242
- Peter Halperin, MDPsychiatry Physician1992736482
- Dhruv Jani, DOGeriatric Medicine (Family Medicine) Physician1891355293
- VI Vien Khoo, RDNRegistered Dietitian1326974684
Verify Peter Elsea in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 159438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.2 times the Medicare Part D claims of the average internal medicine physician in 2024
8,779 Medicare Part D claims for 721 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 268 claims were for opioids.
Most prescribed
- Atorvastatin Calcium583 claims
- Lisinopril419 claims
- Levothyroxine Sodium353 claims
- Gabapentin336 claims
- Omeprazole268 claims
- Amlodipine Besylate232 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital or facility affiliation
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
27 internal medicine physician records list a Northampton practice address
They are 27 of the 1,816 NPPES records with a Northampton practice address, and 7,865 internal medicine physician records in Massachusetts.
All 27 in Northampton → All 7,865 in Massachusetts → Every provider in Northampton →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Zainab AbbasWorcester, MA1609028000
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Salah Abdelgadir, MDBoston, MA1891280954
- Mahmoud Abdelghany, M.D.Springfield, MA1134479629
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Peter Elsea, MD's NPI number?
Peter Elsea, MD's National Provider Identifier (NPI) is 1699731182, issued on Apr 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Elsea, MD located?
The NPPES record lists a practice address at 22 Atwood Dr, Northampton, MA, 01060. Phone: (413) 584-2178. Providers update this record themselves, so call before visiting.
How can I verify Peter Elsea, MD's license?
NPPES lists Massachusetts license number 159438, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Elsea, MD prescribe under Medicare Part D?
In 2024, Peter Elsea, MD had 8,779 Medicare Part D claims for 721 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.